/* ============================================================
   Crossfit PRs – Dark Athletic Theme
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg-base:      #0f0f0f;
  --bg-surface:   #1a1a1a;
  --bg-elevated:  #232323;
  --bg-hover:     #2a2a2a;
  --border:       #2e2e2e;
  --accent:       #f97316;
  --accent-hover: #ea6a0a;
  --accent-dim:   rgba(249,115,22,0.15);
  --success:      #22c55e;
  --danger:       #ef4444;
  --text-primary: #f5f5f5;
  --text-muted:   #888;
  --text-dim:     #555;
  --radius:       8px;
  --shadow:       0 4px 24px rgba(0,0,0,0.5);
}

html, body { height: 100%; background: var(--bg-base); color: var(--text-primary); font-family: 'Segoe UI', system-ui, sans-serif; font-size: 14px; line-height: 1.5; }

/* ---- Utilities ---- */
.hidden { display: none !important; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 16px; border-radius: var(--radius);
  border: none; cursor: pointer; font-size: 13px; font-weight: 600;
  transition: background 0.15s, opacity 0.15s;
}
.btn-primary  { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-ghost    { background: transparent; color: var(--text-muted); border: 1px solid var(--border); }
.btn-ghost:hover { background: var(--bg-hover); color: var(--text-primary); }
.btn-danger   { background: var(--danger); color: #fff; }
.btn-danger:hover { opacity: 0.85; }
.btn-icon     { padding: 6px 8px; background: transparent; color: var(--text-muted); border: 1px solid var(--border); border-radius: var(--radius); cursor: pointer; transition: all 0.15s; }
.btn-icon:hover { background: var(--bg-hover); color: var(--text-primary); }
.btn-sm       { padding: 5px 10px; font-size: 12px; }
.btn-full     { width: 100%; justify-content: center; }

/* ---- Auth Screen ---- */
.auth-screen {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: radial-gradient(ellipse at 50% 0%, rgba(249,115,22,0.08) 0%, transparent 70%), var(--bg-base);
}
.auth-card {
  background: var(--bg-surface); border: 1px solid var(--border);
  border-radius: 12px; padding: 40px; width: 100%; max-width: 400px;
  box-shadow: var(--shadow);
}
.auth-logo { text-align: center; margin-bottom: 28px; }
.auth-logo .logo-icon { font-size: 48px; display: block; margin-bottom: 8px; }
.auth-logo h1 { font-size: 22px; color: var(--accent); letter-spacing: 1px; }
.auth-logo p  { color: var(--text-muted); font-size: 13px; margin-top: 4px; }

.auth-tabs { display: flex; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; margin-bottom: 24px; }
.tab-btn { flex: 1; padding: 9px; background: transparent; border: none; color: var(--text-muted); cursor: pointer; font-size: 13px; font-weight: 600; transition: all 0.15s; }
.tab-btn.active { background: var(--accent); color: #fff; }

/* ---- Forms ---- */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 12px; font-weight: 600; color: var(--text-muted); margin-bottom: 6px; text-transform: uppercase; letter-spacing: 0.5px; }
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%; padding: 9px 12px; background: var(--bg-elevated);
  border: 1px solid var(--border); border-radius: var(--radius);
  color: var(--text-primary); font-size: 14px; outline: none;
  transition: border-color 0.15s;
}
.form-group input:focus,
.form-group select:focus { border-color: var(--accent); }
.form-group input[readonly] { opacity: 0.6; cursor: default; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

.error-msg { background: rgba(239,68,68,0.1); border: 1px solid rgba(239,68,68,0.3); color: #fca5a5; border-radius: var(--radius); padding: 8px 12px; font-size: 13px; margin-bottom: 12px; }

/* ---- App Layout ---- */
.app { display: flex; height: 100vh; overflow: hidden; }

/* ---- Sidebar ---- */
.sidebar {
  width: 220px; flex-shrink: 0;
  background: var(--bg-surface); border-right: 1px solid var(--border);
  display: flex; flex-direction: column;
}
.sidebar-header {
  padding: 20px 16px; display: flex; align-items: center; gap: 10px;
  border-bottom: 1px solid var(--border);
}
.logo-icon { font-size: 22px; }
.logo-text  { font-size: 15px; font-weight: 700; color: var(--accent); letter-spacing: 0.5px; }

.sidebar-nav { flex: 1; padding: 12px 8px; display: flex; flex-direction: column; gap: 2px; }
.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px; border-radius: var(--radius);
  text-decoration: none; color: var(--text-muted); font-size: 13px; font-weight: 500;
  transition: all 0.15s;
}
.nav-item:hover { background: var(--bg-hover); color: var(--text-primary); }
.nav-item.active { background: var(--accent-dim); color: var(--accent); }
.nav-icon { font-size: 16px; }

.sidebar-footer {
  padding: 16px; border-top: 1px solid var(--border);
  display: flex; flex-direction: column; gap: 8px;
}
.user-info { display: flex; align-items: center; gap: 8px; color: var(--text-muted); font-size: 13px; }
.btn-user { background: transparent; border: 1px solid transparent; border-radius: var(--radius); padding: 6px 8px; cursor: pointer; transition: all 0.15s; text-align: left; width: 100%; }
.btn-user:hover { background: var(--bg-hover); border-color: var(--border); color: var(--text-primary); }
.success-msg { background: rgba(34,197,94,0.1); border: 1px solid rgba(34,197,94,0.3); color: #86efac; border-radius: var(--radius); padding: 8px 12px; font-size: 13px; margin-bottom: 12px; }
.section-label { font-size: 12px; font-weight: 700; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 14px; }
.modal-divider { border: none; border-top: 1px solid var(--border); margin: 20px 0; }
.danger-label { color: var(--danger) !important; }
.delete-warning { font-size: 13px; color: var(--text-muted); background: rgba(239,68,68,0.08); border: 1px solid rgba(239,68,68,0.2); border-radius: var(--radius); padding: 10px 12px; margin-bottom: 16px; line-height: 1.5; }
.delete-warning strong { color: #fca5a5; }

/* ---- Avatar ---- */
.avatar-img { width: 32px; height: 32px; border-radius: 50%; object-fit: cover; border: 2px solid var(--accent); flex-shrink: 0; }
.avatar-section { margin-bottom: 4px; }
.avatar-upload-row { display: flex; align-items: center; gap: 14px; margin-bottom: 10px; }
.avatar-preview { width: 64px; height: 64px; border-radius: 50%; object-fit: cover; border: 2px solid var(--accent); }
.avatar-label { cursor: pointer; position: relative; }
.file-input-hidden { position: absolute; inset: 0; opacity: 0; cursor: pointer; width: 100%; }
.file-input { width: 100%; background: var(--bg-elevated); border: 1px solid var(--border); border-radius: var(--radius); color: var(--text-primary); padding: 6px; font-size: 13px; }
.file-input::file-selector-button { background: var(--bg-hover); border: none; color: var(--text-muted); padding: 4px 10px; border-radius: 4px; cursor: pointer; margin-right: 8px; }

/* ---- Main Content ---- */
.main-content { flex: 1; overflow-y: auto; padding: 28px 32px; }

/* ---- Page ---- */
.page { display: none; }
.page.active { display: block; }

.page-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.page-header h2 { font-size: 20px; font-weight: 700; }

/* ---- Search ---- */
.search-bar { margin-bottom: 16px; }
.search-bar input {
  width: 100%; max-width: 360px; padding: 9px 12px;
  background: var(--bg-surface); border: 1px solid var(--border);
  border-radius: var(--radius); color: var(--text-primary); font-size: 14px; outline: none;
  transition: border-color 0.15s;
}
.search-bar input:focus { border-color: var(--accent); }

/* ---- Table ---- */
.table-wrap { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--border); }
table { width: 100%; border-collapse: collapse; }
thead { background: var(--bg-elevated); }
th { padding: 10px 14px; text-align: left; font-size: 11px; font-weight: 700; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; white-space: nowrap; }
td { padding: 10px 14px; border-top: 1px solid var(--border); vertical-align: middle; }
tbody tr { transition: background 0.1s; }
tbody tr:hover { background: var(--bg-hover); }

.exercise-name-col { width: 180px; }
.rm-col { text-align: center; width: 100px; }
.rm-cell {
  text-align: center; cursor: pointer; border-radius: 6px;
  transition: background 0.1s; padding: 4px 8px;
}
.rm-cell:hover { background: var(--accent-dim); }
.rm-cell.has-value { color: var(--accent); font-weight: 700; }
.rm-cell.empty { color: var(--text-dim); }
.rm-cell.empty:hover { color: var(--accent); }

.actions-col { width: 90px; }
.actions-cell { display: flex; gap: 6px; }

/* Workout variant badges */
.badge { display: inline-block; padding: 2px 8px; border-radius: 99px; font-size: 11px; font-weight: 700; letter-spacing: 0.5px; }
.badge-rx     { background: rgba(34,197,94,0.15); color: var(--success); }
.badge-scaled { background: rgba(249,115,22,0.15); color: var(--accent); }

/* ---- Empty State ---- */
.empty-state { padding: 48px 24px; text-align: center; border-top: 1px solid var(--border); }
.empty-state p { color: var(--text-muted); margin-bottom: 16px; font-size: 15px; }

/* ---- Modals ---- */
.modal { position: fixed; inset: 0; z-index: 100; display: flex; align-items: flex-start; justify-content: center; padding: 16px; overflow-y: auto; }
.modal-overlay { position: absolute; inset: 0; background: rgba(0,0,0,0.7); backdrop-filter: blur(2px); }
.modal-card {
  position: relative; z-index: 1;
  background: var(--bg-surface); border: 1px solid var(--border);
  border-radius: 12px; padding: 28px; width: 100%; max-width: 480px;
  box-shadow: var(--shadow);
  margin: auto;
}
.modal-card-sm { max-width: 360px; }
.modal-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.modal-header h3 { font-size: 16px; font-weight: 700; }
.modal-close { background: transparent; border: none; color: var(--text-muted); font-size: 20px; cursor: pointer; line-height: 1; padding: 2px 6px; }
.modal-close:hover { color: var(--text-primary); }
.modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 20px; }
.modal-card p { color: var(--text-muted); margin-bottom: 8px; }

/* ---- Scrollbar ---- */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-dim); }

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .sidebar { width: 60px; }
  .logo-text, .nav-item span:last-child, .sidebar-footer .user-info span:last-child { display: none; }
  .main-content { padding: 16px; }
  .form-row { grid-template-columns: 1fr; }
}